Adjustable Speed Drives are used in any application in which there is mechanical equipment powered by motors; the drives provide extremely precise electrical motor control, so that motor speeds can be ramped up and down, and maintained, at speeds required; doing so utilizes only the energy required, rather than having a motor run at constant (fixed) speed and utilizing an excess of energy. (read more)

Zero-Max Adjustable Speed Drives are a proven method for changing operating speeds. They eliminate the need for expensive AC/DC drives or variable pitch belt drives. Output speed is infinitely adjustable from 0 to 400 rpm with an 1800 rpm input speed. (read more)

Extend motor life and reduce energy costs by using an Omron AC drive to adjust motor speed and torque for smooth response to process demand. Our latest AC drive family offers cost-effective solutions with simple-to-apply advanced functionality and high reliability to make your plant easier to operate. Models are available to meet simple to the most demanding motor control application needs. (read more)

- AC variable freqency drives for speed control applications. High quality products at low prices. DURApulse series sensorless vector AC drives are built on the simplicity & flexibility of the GS1 & GS2 series drives. 1 - 100 horsepower models offer sensorless vector & closed loop control, autotuning, 175% starting torque, & 150% rate current for one minute. (read more)

New DCM8028 and DCM8055 Micro Stepping Drives (read more)

The Andantex two-speed Machine Tool Spindle Drive gearboxes extend the constant power speed range of spindle drive motors, providing high output speeds (10,000 rpm) for finishing aluminum and high torque at low speeds for hogging out steel. (read more)

Danaher Motion servo drives are designed for a wide range of rotary and linear three phase brushless servomotors. Our drives bring you advanced control technology, compact footprints, a wide range of power levels and multiple connectivity options. Power levels range from 1.5 A rms continuous to 70 A rms peak. (read more)

Hitachi L200 drives are full-featured inverters in a compact package. Their cutting-edge functions include side-by-side mounting, built-in timing logic and analog input math (PLC) functions, DIP-switch hand-off-ratio and RS485 Modbus RTU communication interface. An optional NEMA4X keypad allows for panel mounting. (read more)

SDP/SI Is an ISO 9001 manufacturer of over 262 compression spring, constant force spring, Belleville washer, Belleville spring washers, extension springs, Negator constant force spring, spring motors, spring motor... (read more)

Dr. John H. Olsen

As different as the two technologies seem, intensifier and crank drive pumps share the same pumping principle: A plunger is pushed into a closed chamber to raise pressure and expel fluid through an outlet check valve; as the direction of the plunger is reversed, low pressure fluid enters the chamber through an inlet check valve. In both cases the continuously reci... (read more)